Lungbreaker

Our MoP Classic item table (the Blizzard item records our Auction House scanner has collected) has 14 other dagger one-hand items between item level 272 and 300; 8 of them carry fixed stats.

• Potentate's Letter Opener has the most fixed stat points in this group, 1,343.
• Next dagger one-hand items up with fixed stats: Swamplight Spellblade (item level 278, requires level 78), Sishir Spellblade (item level 283, requires level 79), Mirkfallon Spellblade (item level 289, requires level 80), Potentate's Letter Opener (item level 292, requires level 80), Nethander Spellblade (item level 295, requires level 81).
• Cheapest listed dagger one-hand items at a similar or higher item level: Swamplight Spellblade at 23 gold99 silver (item level 278, requires level 78), Sishir Spellblade at 24 gold (item level 283, requires level 79), Nethander Spellblade at 24 gold25 silver (item level 295, requires level 81).
• Other armor types for the one-hand slot within 6 item levels of 277: one-handed mace (6): Sishir Scepter, Swamplight Scepter, Moonbrook Scepter; fist weapon (3): Steelspark Knuckles, Razorwind Knuckles, Angerfang Knuckles; one-handed axe (3): Steelspark Axe, Razorwind Axe, Angerfang Axe; one-handed sword (3): Steelspark Sword, Razorwind Sword, Angerfang Sword.

Item	Item level	Requires	Armor	Fixed stats	Lowest listed
Moonbrook Spellblade	272	77	-	+871 Spell Power	25 gold
Razorwind Dagger	272	77	-	none	121 gold
Lungbreaker	277	80	-	none	-
Steelspark Dagger	278	78	-	none	-
Swamplight Spellblade	278	78	-	+921 Spell Power	23 gold99 silver
Angerfang Dagger	283	79	-	none	-
Sishir Spellblade	283	79	-	+963 Spell Power	24 gold
Mirkfallon Spellblade	289	80	-	+1,019 Spell Power	30 gold
Nethergarde Dagger	289	80	-	none	220 gold
Potentate's Letter Opener	292	80	-	+118 Stamina, +78 Intellect, +40 Critical Strike, +1,047 Spell Power, +60 Mastery	12,299 gold
Nethander Spellblade	295	81	-	+1,075 Spell Power	24 gold25 silver
Splinterspear Dagger	295	81	-	none	-